Введение В последние месяцы человечество столкнулось с коварной инфекцией, вызванной новым штаммом коронавируса человека (SARS-CoV-2), харак-теризующейся довольно высокой летальностью, которая, по данным разных исследований, колеблется в широких пределах (от 0,5 до 15%). Причины значительного числа летальных исходов во Резюме Новая коронавирусная инфекция (COVID-19) представляет собой глобальную проблему человечества. Среди её важнейших аспектов, требующих углублённого изучения,-патогенез и морфологические изменения при тяжелых формах заболевания.

Relevance. Respiratory diseases, flu and pertussis, in particular, are common causes of temporary disability at work place. Pertussis is the second most common infectious disease by incidents increase in the Russian Federation. Combined immunization is found to be an efficient method to prevent infections at work place.Objective. Research objective is to prove safety of combined influenza and the diphtheria-tetanus-pertussis vaccines for people with occupational hazard of respiratory diseases.Materials and methods. We have studied the vaccination process in 257 adults with 2-nd and 3-rd health groups. We evaluated post-vaccination reactions, their localization, severity, time onset, and duration. We identified two groups with weaker and stronger side effects after vaccination. We determined typical parameters of the vaccination process.Results. 50% people in examined group showed adverse reaction. Symptoms were weak as a rule and lasted up to 4 days mostly. 29 people (11%) had more severe and long reaction. 6 patients (2%) required supportive care, 2 (0.8%) showed severe symptoms lasting from 2 to up to 5 days.Conclusion. The application of influenza vaccination combined with diphtheria, tetanus and pertussis vaccinations simultaneously have demonstrated that it is safe to use in adults at risk of exposure for respiratory diseases at workplace. Minor side effects do not pose a health threat, and can be completely prevented.

Among the problems associated with a new coronavirus infection, the possibility of its occurrence in pregnant women plays an important role. Until now, there is very little data on perinatal COVID-19, and there are no descriptions of structural changes in the afterbirth at all. Material and methods. A clinical and morphological analysis of 6 cases in which women with verified COVID-19 gave birth in an infectious hospital was performed. In all cases, the placenta was examined in detail morphologically using antibodies to the nucleoprotein and spike (S1 subunit spike protein) SARS-CoV-2. COVID-19 Results. It is shown that the clinical course of COVID-19 in pregnant women may be different, three were in the intensive care unit, including one was shown to be on a ventilator. 4 children were born at term, 2 children prematurely (at 31- 33 weeks of pregnancy). The condition of children in 5 nab. was assessed as satisfactory, only one child in serious condition was transferred to a children’s hospital. Intrauterine infection with the polymerase chain reaction documented in a single observation. When histological examination of the afterbirth in all observations, both in the maternal and fetal parts, changes characteristic of RNA viral infection was detected. Both of the studied antigens were found in moderate amounts in IHC. Conclusions. Intrauterine transplacental infection with a new coronavirus is certainly possible. Its frequency and clinical significance require further comprehensive study.

Relevance. Respiratory diseases, flu and pertussis, in particular, are common causes of temporary disability at work place. Pertussis is the second most common infectious disease by incidents increase in the Russian Federation. Combined immunization is found to be an efficient method to prevent infections at work place.Objective. Research objective is to prove safety of combined influenza and the diphtheria-tetanus-pertussis vaccines for people with occupational hazard of respiratory diseases.Materials and methods. We have studied the vaccination process in 257 adults with 2-nd and 3-rd health groups. We evaluated post-vaccination reactions, their localization, severity, time onset, and duration. We identified two groups with weaker and stronger side effects after vaccination. We determined typical parameters of the vaccination process.Results. 50% people in examined group showed adverse reaction. Symptoms were weak as a rule and lasted up to 4 days mostly. 29 people (11%) had more severe and long reaction. 6 patients (2%) required supportive care, 2 (0.8%) showed severe symptoms lasting from 2 to up to 5 days.Conclusion. The application of influenza vaccination combined with diphtheria, tetanus and pertussis vaccinations simultaneously have demonstrated that it is safe to use in adults at risk of exposure for respiratory diseases at workplace. Minor side effects do not pose a health threat, and can be completely prevented.